Historikerstreit is a German word that means "historian's dispute". It was a disagreement between two groups of historians in the 1980s. One group thought that Germany was mainly to blame for the events of World War II and the Holocaust, and the other group thought that other countries shared some of the blame. The disagreement was about who was responsible for the actions, and lasted for several years. In the end, the two groups came to an understanding that Germany was mostly responsible, but that other countries could also be blamed.